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74ALVC2245 Datasheet

  • 74ALVC2245

  • Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inp...

  • 7頁

  • FAIRCHILD

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74ALVC2245 Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26鈩?Series
Resistors in B Outputs
February 2002
Revised February 2002
74ALVC2245
Low Voltage Bidirectional Transceiver
with 3.6V Tolerant Inputs and Outputs
and 26
鈩?/div>
Series Resistors in B Outputs
General Description
The ALVC2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The T/R input determines the direction
of data flow. The OE input disables both the A and B ports
by placing them in a high impedance state.
The 74ALVC2245 is designed for low voltage (1.65V to
3.6V) V
CC
applications with I/O compatibility up to 3.6V.
The ALVC2245 is also designed with 26
鈩?/div>
series resistance
in the B Port outputs. This design reduces line noise in
applications such as memory address drivers, clock driv-
ers, and bus transceivers transmitters
The 74ALVC2245 is fabricated with an advanced CMOS
technology to achieve high-speed operation while main-
taining low CMOS power dissipation.
Features
s
1.65V to 3.6V V
CC
supply operation
s
3.6V tolerant inputs and outputs
s
26
鈩?/div>
series resistors in B Port outputs
s
Power-off high impedance inputs and outputs
s
Supports Live Insertion and Withdrawal (Note 1)
s
t
PD
(A to B)
4.9 ns max for 3.0V to 3.6V V
CC
6.1 ns max for 2.3V to 2.7V V
CC
9.8 ns max for 1.65V to 1.95V V
CC
s
Uses patented Quiet Series
錚?/div>
noise/EMI reduction
circuitry
s
Latchup conforms to JEDEC JED78
s
ESD performance:
Human body model
>
2000V
Machine model
>
200V
Note 1:
To ensure the high impedance state during power up and power
down, OE
n
should be tied to V
CC
through a pull up resistor. The minimum
value of the resistor is determined by the current sourcing capability of the
driver.
Ordering Code:
Order Number
74ALVC2245WM
74ALVC2245MTC
Package Number
M20B
MTC20
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Logic Symbol
Pin Descriptions
Pin Names
OE
T/R
A
0
鈥揂
7
B
0
鈥揃
7
Description
Output Enable Input (Active LOW)
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Quiet Series錚?is a trademark of Fairchild Semiconductor Corporation.
漏 2002 Fairchild Semiconductor Corporation
ds500717
www.fairchildsemi.com

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